package thread;

public class ThreadDemo2 {
    public static void main(String[] args) {

        //单独实例化任务
        Runnable r1=new MyRunnable1();
        Runnable r2=new MyRunnable2();
        //创建线程并指派任务
        Thread t1=new Thread(r1);
        Thread t2=new Thread(r2);

        t1.start();
        t2.start();
    }
}

class MyRunnable1 implements Runnable{
    @Override
    public void run() {
        for (int i = 0; i < 1000; i++) {
            System.out.println("Hello, who's there?");
        }
    }
}
class MyRunnable2 implements Runnable{
    @Override
    public void run() {
        for (int i = 0; i < 1000; i++) {
            System.out.println("Open the door!");
        }
    }
}